(Adding other products will affect these rates)
81XH roller chain uses thicker link plates over the standard 81x chain. This improves the chains fatigue resistance, overall strength and longevity. 81XH heavy duty chain is great for moderate to high shock loads. This chain is also available in 81X standard and 81XHH super heavy duty.
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.